adding `led_effect sb_nozzle_printing` issue

[Gil80]

When printing, I'd like the nozzle leds to be white, so the webcam can pick the printing process easily.

I added the following to the stealthburner_led_effects_3_leds.cfg:

Under "Nozzle effects"

[led_effect sb_nozzle_printing]
autostart:              false
frame_rate:             24
leds:
    neopixel:sb_leds (2,3)
layers:
        static 0  0 subtract (1.0, 1.0, 1.0)

and edited this:

[gcode_macro status_printing]
gcode:
    STOP_LED_EFFECTS
    SET_LED_EFFECT EFFECT=sb_logo_printing
    SET_LED_EFFECT EFFECT=sb_nozzle_printing
    set_nozzle_leds_on

The issue is that the nozzle leds are too bright when viewing the printing process through the webcam and I couldn't find how to set WHITE=0.1 only to the nozzle leds. With a previous stealthburner_leds.cfg config file I used, I could issue: _set_nozzle_leds WHITE=0.1 and it would change it accordingly.

Appreciate your help!

[claudermilk]

I have my nozzle lights set with add, not subtract. I'm using the spec parts, so they are RGBW and my definition is static 0 0 add (0.8,0.8,0.8,1.0) which works. You can drop the levels from there if needed.

[Gil80]

@claudermilk I couldn't figure out how to lower the LED output. What's the command to use? Before this great LED config, I could send a command with WHITE=0.1 and all the nozzle leds were at their lowest output.

[claudermilk]

1.0 = 100%. To set to 10% for example, just use (0.1,0.1,0.1,0.1) The values are (R,G,B,W)

[Gil80]

1.0 = 100%. To set to 10% for example, just use (0.1,0.1,0.1,0.1) The values are (R,G,B,W)

is there a command I can run via console to see the change?

[claudermilk]

I like using the simulator. Then I just tweak the settings in my definitions, restart Klipper and run the macro to set the LEDs and see what they look like. Lots of restarting Klipper until you're happy.

[Gil80]

@claudermilk thanks. I wasn't able to figure out how to use the simulator... I'll try again.

[julianschill]

Go to releases, download the file for your platform (Windows or MacOS) and run it. There is also a video from West3d that explains how to use it. https://youtu.be/ZRuwBEOEA2c

[Gil80]

@julianschill I had a play with the simulator and watched the youtube video and I still don't understand how to get this working for my stealthburner. I have the Voron official 3 LEDs chain. 1 for the logo, 2 for the nozzle. All I want is to have the logo display whatever print gradient, like comet, but the nozzle LEDs to be the weakest static white light possible. I wasn't able to achieve this with the simulator. I also read the documentation about the blending options, but it seems that it's beyond my understanding how to operate this.

Is there a simple macro to apply when a print starts, given the led nozzles to be static white with lowest light output?

[julianschill]

Just modify your nozzle effect:

[led_effect sb_nozzle_printing]
autostart:              false
frame_rate:             24
leds:
    neopixel:sb_leds (2,3)
layers:
        static 0  0 top (0.1, 0.1, 0.1) 

Or if you want to use the whitel LED:

[led_effect sb_nozzle_printing]
autostart:              false
frame_rate:             24
leds:
    neopixel:sb_leds (2,3)
layers:
        static 0  0 top (0, 0, 0, 0.1)

The simulator doesn’t support RGBW at the moment. It won't show the white channel.